F2fs_ioc_compress_file

Author: dhsv

August undefined, 2024

WebF2FS is a file system exploiting NAND flash memory-based storage devices, which is based on Log-structured File System (LFS). The design has been focused on addressing the … Web* [PATCH 2/3] f2fs: add F2FS_IOC_SET_COMPRESS_OPTION_V2 ioctl @ 2024-01-12 13:35 Yangtao Li 2024-01-13 4:24 ` kernel test robot 2024-01-28 10:34 ` Chao Yu 0 siblings, 2 replies; 4+ messages in thread From: Yangtao Li @ 2024-01-12 13:35 UTC (permalink / raw) To: jaegeuk, chao; +Cc: linux-f2fs-devel, linux-kernel, Yangtao Li Added a new …

LKML: Chao Yu: [RFC PATCH 2/2] f2fs: introduce F2FS_IOC…

WebWhen getting and setting compression option, the first byte should be copied from userspace in advance to get the version. Then copy the whole option according to version size. The new f2fs_compr_option could be compatible with old userspace tool: Old tool does not set the MSB 4 bits, which keep all 0. WebIt contains file and directory data including their indices. In order to avoid misalignment between file system and flash-based storage, F2FS aligns the start block address of CP with the segment size. Also, it aligns the start block address of Main area with the zone size by reserving some segments in SSA area. lighting up my keyboard

Finding out F2FS compression ratio / Kernel & Hardware ... - Arch Linux

WebMar 2, 2024 · Toggle navigation Patchwork Linux f2fs filesystem development . Patches Bundles About this project Login; Register http://www.uwsg.indiana.edu/hypermail/linux/kernel/2012.0/08903.html Web* [PATCH v6 2/2] f2fs: add F2FS_IOC_SET_COMPRESS_OPTION ioctl 2024-10-30 2:27 [PATCH v6 1/2] f2fs: add F2FS_IOC_GET_COMPRESS_OPTION ioctl Daeho Jeong @ … lighting up motorcycle helmet

[PATCH 1/2] f2fs: correct i_size change for atomic writes

WHAT IS Flash-Friendly File System (F2FS)? - docs.kernel.org

Web#define f2fs_ioc_compress_file _io (f2fs_ioctl_magic, 24) #define F2FS_IOC_START_ATOMIC_REPLACE _IO ( F2FS_IOCTL_MAGIC , 25 ) * should be same as XFS_IOC_GOINGDOWN. WebFeb 18, 2024 · Can anyone using F2FS with compression see what I'm doing wrong here? I'm testing F2FS on Debian 11 running their supplied Kernel 5.10. Here's me testing BtrFS. I create an empty volume group (purely for testing), wipefs it, format it, mount it with compression. Check the disk space with "df", write a 1GB empty file, and check the … lighting up solid states using a rubberWeb*f2fs-dev] [PATCH v3] f2fs: change the current atomic write way @ 2024-04-28 18:18 Daeho Jeong 2024-05-22 12:43 ` Chao Yu 2024-03-31 14:22 ` Tudor Ambarus 0 siblings, 2 replies; 6+ messages in thread From: Daeho Jeong @ 2024-04-28 18:18 UTC (permalink / raw) To: linux-kernel, linux-f2fs-devel, kernel-team; +Cc: Daeho Jeong From: Daeho … lighting up my world

"WebFeb 21, 2024 · There are still reserved blocks on compressed inode, this patch introduce a new ioctl to help release reserved blocks back to filesystem, so that userspace can reuse those freed space. " - F2fs_ioc_compress_file

F2fs_ioc_compress_file

F2FS Picking Up "compress_cache" Feature With Linux 5.14

WebDec 23, 2024 · Linux 5.6 is set to bring F2FS data compression! The implementation is similar to Btrfs' transparent/native file compression plus having some extra features. … WebOct 29, 2024 · struct f2fs_comp_option { u8 algorithm; => compression algorithm => 0:lzo, 1:lz4, 2:zstd, 3:lzorle u8 log_cluster_size; => log scale cluster size => 2 ~ 8 }; struct …

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WebOn my aarch64 box above command took about 2-3 minutes to complete for a 384MB file (so I strongly recommend not to use larger size). Number of zero bytes on empty (fresh) F2FS partition (regardless of compression): 402651704 (383M) Uncompressed, maxed out with files: 107968367 (102M) Compressed, maxed out with files:

WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH v3] f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPRESS_FILE @ 2024-12-03 … WebThis is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).mirroring instructions …

WebThis is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).mirroring instructions for how to clone and mirror all data and code used for … WebMar 2, 2024 · Message ID: [email protected] (mailing list archive)State: New: Headers: show

WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH v6] f2fs: compress: support compress level @ 2024-12-03 6:17 Chao Yu 2024-12-03 19:32 ` " Eric Biggers 0 siblings, 1 reply; 14+ messages in thread From: Chao Yu @ 2024-12-03 6:17 UTC (permalink / raw) To: jaegeuk; +Cc: linux-f2fs-devel, linux-kernel, chao, Chao Yu Expand …

WebIt contains file and directory data including their indices. In order to avoid misalignment between file system and flash-based storage, F2FS aligns the start block address of CP … peakrankings coloradoWeb$ do_compress ./file ; call F2FS_IOC_COMPRESS_FILE again 10. $ get_compr_blocks ./file ; call F2FS_IOC_GET_COMPRESS_BLOCKS again This reproduction process is tested in 128kb cluster size. You can find compr_blocks has a negative value. lighting up tennis in redmarleyWebJan 23, 2024 · Files created by truncate have a size but no blocks, so they can be allowed to set compression option. Fixes: e1e8debec656 ("f2fs: add F2FS_IOC_SET_COMPRESS_OPTION ioctl") lighting up the dark fanficWebYes, I guess you are worry about destop/server scenario, as for android scenario, all compression related flow can be customized, and I don't think we will use online lz4hc compress; for other scenario, except the numbers, I need to add the risk of using lz4hc algorithm in document. peakrankings.comWebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH v5 1/2] f2fs: add F2FS_IOC_GET_COMPRESS_OPTION ioctl @ 2024-10-29 4:15 Daeho Jeong 2024-10-29 4:15 ` [PATCH v5 2/2] f2fs: add F2FS_IOC_SET_COMPRESS_OPTION ioctl Daeho Jeong 2024-10-29 7:24 ` [f2fs-dev] [PATCH v5 1/2] f2fs: add … peakreality gumroadWebRe: [PATCH 2/2] f2fs: support data compression From: Chao Yu Date: Fri Nov 01 2024 - 06:02:14 EST Next message: qi.fuli@xxxxxxxxxxx: "Re: [PATCH 0/2] arm64: Introduce … lighting up shoes for kidsWebAug 26, 2024 · Per the wiki and the f2fs kernel documentation it looks like setting the `c` attribute on a file should compress the file and setting the `c` attribute on a directory … peakrankings crested butte